The functions are as follows:

1. Moisturizing

Skin problems caused by dehydration are by no means as simple as dryness. Almost every skin problem is related to replenishing and maintaining moisture. related. So you know what? It turns out that egg yolk also has a magical hydrating effect. Let’s take a look with the editor.

Ingredients: 1 egg, honey, milk, appropriate amount of flour

Advantages: Remove skin toxins, remove acne and moisturize

Method: Crack the eggs into a bowl, Take only egg yolks, mix in honey, milk, and flour, and mix well.

Usage: Apply on face before going to bed at night, wash off with warm water after 20 minutes.

Efficacy analysis: Honey and egg yolk both moisturize the skin. This homemade facial mask can replenish various nutrients of the skin and make the skin delicate and shiny. This hydrating mask is especially suitable for dry skin and winter or winter weather. Extremely dry areas.

2. Eyesight protection

Lutein and zeaxanthin are closely related to eye protection. Lutein and zeaxanthin both have strong antioxidant effects, especially in eye protection.

Eggs are rich in protein, fat, vitellin, lecithin, vitamins and minerals needed by the human body such as iron, calcium, potassium, lutein and zeaxanthin. Egg yolks also contain high cholesterol, which is thought to increase blood lipids and lead to arteriosclerosis, so some people only eat egg whites and not the yolks.

But they don’t know that egg yolk is rich in nutrients. Among the ingredients of egg yolk, there are two nutrients that need to be mentioned in particular, namely lutein and zeaxanthin.

The dark yellow color of egg yolk is the source of lutein and zeaxanthin. More than 1/3 of the fat-soluble yellow substances in egg yolk come from these two ingredients, and they are very easily absorbed by the body. Therefore, for normal eggs, the yellower the yolk is, the better it is for eye health.

Although people with coronary heart disease, high blood pressure, hyperlipidemia, high cholesterol and other diseases should not eat more eggs. But there’s nothing wrong with eating it in moderation. Experts suggest that while eating eggs, you should also eat more fruits and vegetables. This can avoid high cholesterol and protect your eyes.

3. Treat dysmenorrhea

Take 2 eggs, 30 grams of Motherwort, and 15 grams of Yuanhu. Put them into a casserole and add an appropriate amount of water to boil. After the eggs are cooked, remove the shells and cook for a while. Eating eggs and drinking soup is a good dietary therapy for patients with dysmenorrhea.

Extended information:

The yolk is the yellowish part inside the egg. The protein of eggs is concentrated in the egg white and egg membrane, and the remaining nutrients are concentrated in the egg yolk. Egg yolk is rich in fat-soluble vitamins, monounsaturated fatty acids, phosphorus, iron and other trace elements.

Egg yolk is also part of the nutrients in eggs. The main minerals, vitamins, phospholipids, etc. in eggs are in the yolk. The main components of egg yolk are 17.5% protein, 32.5% fat, about 48% water, 2% minerals, and a variety of vitamins.

Taboos:

1. Avoid eating hard-boiled eggs

If eggs are cooked for too long, a gray-green ferrous sulfide layer will form on the surface of the yolk, which is very dangerous. Difficult to be absorbed by the human body. Aged protein will become hard and tough, affecting appetite and making it difficult to absorb.

2. Eggs should not be cooked with sugar

Boiling eggs with sugar will produce a substance called glycosyl lysine due to high temperature, which will destroy the beneficial effects of eggs on the human body. It contains amino acids, and this substance has a blood coagulation effect and will cause harm after entering the human body. If you need to add sugar to boiled eggs, you should wait for them to cool slightly before adding them and stir them in so that the flavor is not reduced.

3. Scrambled eggs do not need to add MSG

Eggs contain sodium chloride and a large amount of glutamic acid. These two ingredients will generate sodium glutamate after heating, which has pure Umami. The main component of MSG is also monosodium glutamate. If MSG is added when scrambled eggs, it will affect the synthesis of monosodium glutamate in the eggs themselves, destroying the delicious flavor of the eggs.

4. Avoid storing eggs after soaking them in cold water

Some people often immerse hard-boiled eggs in cold water, taking advantage of the different thermal expansion coefficients of eggshells and albumen to make the eggshells easy to peel off. , but this approach is unhygienic.

Because there is a protective film on the surface of fresh eggs, the water in the eggs is not easy to evaporate and prevents microorganisms from invading.

After the egg is cooked, the membrane on the shell is destroyed, and some gas in the air cavity of the egg escapes. At this time, placing the egg in cold water will cause the temperature in the air cavity to drop sharply and create a negative pressure. Cold water and microorganisms It can enter the egg through the pores on the eggshell and the double-layer membrane inside the shell, and is prone to spoilage during storage

5. Which eggs cannot be eaten

Cracked eggs: Eggs are transported and stored During the packaging and packaging processes, due to vibration, extrusion and other reasons, some eggs will cause cracks and cracks, which are easily invaded by bacteria. If they are left for a long time, they are not suitable for consumption.

Sticky-shell eggs: This kind of egg has been stored for too long, and the yolk membrane has become weak from toughness. The yolk is close to the eggshell. If it is partially red, you can still eat it, but the egg membrane will not stick to the eggshell. If the skin is dark black and smells bad, it should not be eaten.

Rotten eggs: Bacteria invade the eggs and multiply, resulting in deterioration, the eggshells are dark gray, and even the eggshells are ruptured due to the expansion of hydrogen sulfide gas inside, and the mixture inside the eggs is gray-green or dark. If it is yellow and has a foul smell, the egg cannot be eaten, otherwise it will cause bacterial food poisoning.

Loose yolk eggs: due to violent vibrations such as transportation, the yolk membrane ruptures, causing mechanical loose yolk; or if stored for too long, bacteria or mold invade the egg through the pores of the eggshell, destroying the protein structure Causes loose yellow and thin and turbid egg liquid. If the yellowing is not severe and there is no peculiar smell, it can still be eaten after high-temperature treatment such as boiling. However, if bacteria multiply in the egg and the protein has been denatured, it cannot be eaten if there is a smell.

Stillborn eggs: Eggs that are contaminated by bacteria or parasites during the incubation process, coupled with poor temperature and humidity conditions, cause the embryo to stop developing are called stillborn eggs. The nutrients contained in such eggs have changed. If they die for a long time, the protein will be decomposed and a variety of toxic substances will be produced, so they should not be eaten.

Moldy eggs: When some eggs are exposed to rain or moisture, the protective film on the surface of the eggshell will be washed away, allowing bacteria to invade the inner surface of the egg and become moldy and deteriorate, resulting in black spots and mold on the eggshell. It is also not advisable to buy hatching eggs for consumption.

In addition, there are diarrhea yolk eggs, blood tendon eggs, etc. which generally should not be purchased and eaten.

6. Avoid eating undercooked eggs

Egg protein contains avidin, which will affect the absorption of biotin in food, causing loss of appetite, general weakness, muscle pain, and skin problems. Symptoms such as inflammation and eyebrow loss. Eggs contain antitrypsin, which affects the body's digestion and absorption of egg protein. These two substances in undercooked eggs have not been broken down, thus affecting the digestion and absorption of protein.

Eggs will carry bacteria during the formation process. Uncooked eggs cannot kill bacteria and can easily cause diarrhea. Therefore, eggs should be eaten after they have been heated to high temperatures, and do not eat undercooked eggs.

The protein structure of raw eggs is dense, and a large part of it cannot be absorbed by the human body. Only when cooked, the protein becomes soft and can be digested and absorbed by the human gastrointestinal tract. Raw eggs have a special fishy smell, which can cause central nervous system depression and reduce the secretion of digestive juices such as saliva, gastric juice, and intestinal juice, leading to loss of appetite and indigestion.

Reference materials:

Baidu Encyclopedia-Egg Yolk